标签:pollen 相关文章
In spring , the desert undergoes a remarkable transformation. For just a few weeks a year, the flowers of over 3, 000 different plant species turn this desert into the Garden of Africa. This dazzling
By Mario Ritter HEALTH REPORT - May 1, 2002: Allergies This is the VOA Special English Health Report. Many different substances and organisms in the environment affect our health. An allergy is an unu
AGRICULTURE REPORT - Pumpkins: Not Just for Halloween By Mario Ritter Broadcast: Tuesday, November 01, 2005 I'm Faith Lapidus with the VOA Special English Agriculture Report. Many Americans celebrated
Study: Insecticide Is Killing Wild Bees 研究发现杀虫剂杀死野生蜜蜂 A new study says a widely-used insecticide is damaging wild bee populations. Wild bees are important, because they pollinate crops and wild plants. Environmentalists in t
The skin will swell at the place where you were stung, and that spot will feel very sore for several days. 皮肤被叮咬的地方高高肿起, 在接下来的几天时间里, 这个伤口都会令人感到疼痛难忍。 The hive bee is dark brown
Voice 1 Welcome to Spotlight. Im Christy VanArragon. Voice 2 And Im Adam Navis. Spotlight uses a special English method of broadcasting. It is easier for people to understand - no matter where in the world they live. Voice 1 A farmer stands at the ed
The fact that Pachyrhinosaurus is found in so many different areas suggests that these dinosaurs had a remarkable ability to adapt to a variety of different environments. 肿鼻角龙在那么多不同的地方被发现,说明这种恐龙对不同环
A report in the journal Science announces the finding of the oldest known human-fashioned threads, left in a cave by the Caucasus mountains about 34,000 years ago. Cynthia Graber reports. We humans love to decorate things. We wear flashy clothes, ti
Bees are Carrying Pesticides into the Worlds Honey Bees are responsible for about 30 percent of the world's food supply. Our fruits and vegetables would not grow without bees. Many farmers use chemical products known as pesticides to protect food pla
Breathing Easier: How to Control Asthma This is Science in the News. Im Shirley Griffith. And Im Bob Doughty. Spring has returned to the United States. The sky is blue, the grass is green and many plants are flowering. Spring can be a beautiful time
AS IT IS 2016-03-28 Rare Flower Blooms at US Botanic Garden 罕见花朵在美国植物园盛开 A rare plant at the U.S. Botanic Garden in Washington D.C. is now in flower. The blue-green colored climbing plant is called the Jade vine. In the 20 yea
SCOTT SIMON, HOST: We've heard a lot in recent years about the struggles of honeybees, how their numbers are down. So environmentalists have rallied to their aid - even helping people to set up their own beehives. But this bothers a lot of ecologists
Lesson 75 Only A Weed 第75课 蒲公英 When the dandelion flowers have all received their supply of pollen, and their seeds are set or fully formed, 当蒲公英的花朵全部获得它们所需的花粉、种子也做好准备或者说完全成型之
Lesson 71 The Cherry-tree And Its Fruit 第71课 樱桃树及其果实 The cherry-tree is a small tree which grows to a height of about twenty feet. Its stem is covered with a smooth brown bark, and its green leaves have saw-like edges, somewhat like
In spring, some hollow flower-stalks grow up from the centre of the rosette of leaves. Each stalk bears what looks like one large yellow flower. But if you pull one of these flower-heads to pieces, you will find that it is really made up of a great m
If you cut this seed-vessel across with a pen-knife, you will find inside it some tiny young green seeds. 用一把小刀将这个种皮切开,就能看到里面尚未成熟的绿色小种。 Within the flower of the snow-drop you can see some gree
A group of people, who are against genetically modified plants, destroyed 375 pine trees in Rotorua during Easter. The trees were planted by a government forestry research organization called Scion. Scientists at Scion are trying to develop pine tree
AGRICULTURE REPORT - All About the Birds and the Bees -- No, Just the Bees By Mario Ritter Broadcast: Tuesday, December 20, 2005 I'm Steve Ember with the VOA Special English Agriculture Report. Most p
HEALTH REPORT - Sometimes What Feels Like an Infection May Be an Allergy By Mario Ritter Broadcast: Wednesday, July 06, 2005 I'm Gwen Outen with the VOA Special English Health Report. Pollen from flow
These are difficult inconsistencies. 这些都是难以解释的矛盾地方。 As Richard Fortey observes: Somehow it does not seem satisfying just to call them 'lucky ones' and leave it at that. 正如理查德福泰所说:仅仅把它们称做幸运